Nevir NVR-4493 CH-145, Manual

Page: 8 / 9

8
V.Ordinary troubles and remedies.
Phenomenon/
Problem Cause
Insp.Content
Remedy
Remark
Red light not functioning No Electricity Fuse Broken Check fuse Replace fuse
Loose plug and socket Check for loose
contact Replace or service socket
With Electricity Loose red bulb Check for loose
contact Tighten the bulb
Broken red bulb Remove red bulb Replace red bulb
Green light not functioning Compressor working
well Loose green bulb Check for loose
contact Tighten the bulb
Broken green bulb Remove green
bulb Replace the bulb
Loose thermostat Check thermostat Tighten the thermostat
Compressor not working Loose thermostat Check for loose
contact Tighten the thermostat
Thermostat damage
Check for short
circuit Replace thermostat
Non-stop running of machine
Does not refrigerate well Thick frost on surface Check thickness
<=5mm Defrost time
Door open frequently
Avoid open
Too much food stored
Lessen the quantity.
Refrigerate well R134a/R600a
Leaked
Set temp.<ambient
temp Check temp level
“5-6” Adjust level to “2-4”
Thermostat not
working Replace thermostat
Too noisy Refrigerator installed on an uneven ground Check universal
wheels Put on a level and even
ground
Loose screws at condenser or compressor Check for loose
screws. Tighten the loose screws
Compressor not working but
red and green light working. Loose of starting relay or heat preventing socket Check damaged
contact
Tighten the connection
Compressor damaged Repair/Service
Compressor
Voltage less than 187V Check the voltage
level Use a power regulator